Interview Questions
Practice the exact questions companies are asking right now.
Questions
10.0k
Companies
520
Updated
08.21.2026
10.0k Questions 520 Companies08.21.2026
PLTCHK
"I got asked a hardcore MCM DP question and I saw it on PracHub as well. Solved that question in 5 minutes. Without PracHub I doubt I could solve it in 5 hours. Though somehow didn't get hired, perhaps I guess I solved it too fast? /s"
_The_TaNk_
"Believe me i'm a student here jn US. Recently interviewed for MSFT. They asked me exact question from PracHub. I saw it the night before and ignored it cause why waste time on random sites. I legit wanna go back and redo this whole thing if I had chance. Not saying will work for everyone but there is certainly some merit to that website. And i'm gonna use it in future prep from now on like lc tagged"
ChrisSenior SWE, LinkedIn
"10 years of experience but never worked at a top company. PracHub's senior-level questions helped me break into FAANG at 35. Age is just a number."
sleepy33
"I was skeptical about the 'real questions' claim, so I put it to the test. I searched for the exact question I got grilled on at my last Meta onsite... and it was right there. Word for word."
JakeSenior ML Engineer, Lyft
"Got a Google recruiter call on Monday, interview on Friday. Crammed PracHub for 4 days. Passed every round. This platform is a miracle worker."
nuggetlord
"I've used LC, Glassdoor, and random Discords. Nothing comes close to the accuracy here. The questions are actually current — that's what got me. Felt like I had a cheat sheet during the interview."
CarlosFull Stack, Shopify
"The solution quality is insane. It covers approach, edge cases, time complexity, follow-ups. Nothing else comes close."
boba.tea.vibes
"Legit the only resource you need. TC went from 180k -> 350k. Just memorize the top 50 for your target company and you're golden."
AndySWE-II, Google
"PracHub Premium for one month cost me the price of two coffees a week. It landed me a $280K+ starting offer."
couchpotato99
"Literally just signed a $600k offer. I only had 2 weeks to prep, so I focused entirely on the company-tagged lists here. If you're targeting L5+, don't overthink it."
ShrutiData Engineer, Salesforce
"Coaches and bootcamp prep courses cost around $200-300 but PracHub Premium is actually less than a Netflix subscription. And it landed me a $178K offer."
midnightramen
"I honestly don't know how you guys gather so many real interview questions. It's almost scary. I walked into my Amazon loop and recognized 3 out of 4 problems from your database."
BiancaFrontend Eng, Figma
"Discovered PracHub 10 days before my interview. By day 5, I stopped being nervous. By interview day, I was actually excited to show what I knew."
tambrahm007
"I recently cleared Uber interviews (strong hire in the design round) and all the questions were present in prachub."
toa
"The search is what sold me. I typed in a really niche DP problem I got asked last year and it actually came up, full breakdown and everything. These guys are clearly updating it constantly."
Showing 20 results
Role
Medium
Software Engineer LockedAnswer Behavioral Leadership Questions
This question evaluates leadership and behavioral competencies for a software engineering role, including ownership, judgment, communication, prioriti...
Behavioral & Leadership
4
0
63 people solved
Apr 7, 2026
Hard
Software Engineer LockedMinimize time for two handlers
This question evaluates algorithmic optimization skills and stateful scheduling reasoning, focusing on task assignment trade-offs and cumulative cost ...
Coding & Algorithms
7
0
100 people solved
Apr 7, 2026
Easy
Software Engineer LockedDesign a Trade Ledger Class
This question evaluates the ability to design class interfaces, choose and justify data structures for ordered storage, and reason about sorting behav...
Software Engineering Fundamentals
5
0
57 people solved
Feb 18, 2026
Easy
Software Engineer LockedCompute Range Sum Quickly
This question evaluates a candidate's understanding of range-sum queries, array preprocessing techniques and algorithmic complexity for answering mult...
Coding & Algorithms
3
0
50 people solved
Feb 18, 2026
Medium
Machine Learning EngineerDesign a system for LinkedIn Skills
Design an ML system for “LinkedIn Skills”. The system should infer and/or recommend skills for members, and support downstream use cases like search/r...
ML System Design
4
0
77 people solved
Feb 18, 2026
Medium
Machine Learning EngineerDesign LinkedIn Learning course recommendations
Design a mini ML system to recommend LinkedIn Learning courses to a user. Product goal: - Recommend courses that help the user succeed in their job se...
ML System Design
8
0
77 people solved
Feb 18, 2026
Medium
Machine Learning Engineer LockedDesign Harmful Content and OOM Detection
This question evaluates machine learning system-design competencies, including safety-oriented content classification, taxonomy and labeling strategy,...
ML System Design
6
0
94 people solved
Jan 6, 2026
Hard
Software Engineer LockedDesign a natural-disaster notification system
This question evaluates system design competencies including large-scale geospatial data processing, spatial indexing, event-driven notification pipel...
System Design
11
0
96 people solved
Jan 6, 2026
Medium
Software EngineerSenior+ LockedDesign globally consistent metadata service
This question evaluates expertise in distributed systems and system design, focusing on linearizable consistency, multi-region replication and partiti...
System Design
6
0
86 people solved
Jan 6, 2026
Medium
Software EngineerIntern LockedMaximize capacity with primary-backup pairing
This question evaluates combinatorial optimization and constrained matching skills, focusing on algorithm design, complexity analysis, and resource-al...
Coding & Algorithms
6
0
52 people solved
Jan 6, 2026
Medium
Software Engineer LockedMinimize total factory cost with distance penalties
This question evaluates dynamic programming and sequence optimization skills, focusing on modeling cumulative build costs with adjacency distance pena...
Coding & Algorithms
5
0
42 people solved
Jan 6, 2026
Medium
Software EngineerIntern LockedFind shortest subarray with at least k distinct
This question evaluates proficiency in array manipulation, frequency counting, and efficient tracking of distinct values within contiguous subarrays, ...
Coding & Algorithms
6
0
74 people solved
Jan 6, 2026
Medium
Machine Learning EngineerDesign Large-Scale Inference Serving
Design a production inference serving system for a machine learning model used by 100 million daily active users. Your answer should cover: traffic as...
ML System Design
10
0
97 people solved
Nov 27, 2025
Medium
Data Scientist LockedHow Should Stripe Capital Be Evaluated?
This question evaluates a data scientist's competency in credit and product analytics, including dashboard design, predictive modeling for merchant qu...
Analytics & Experimentation
9
0
64 people solved
Nov 27, 2025
Hard
Software EngineerDesign an online coding judge
Question Design an online coding practice and judging platform (think LeetCode / HackerRank / Codeforces) where users submit solutions that are compil...
System Design
6
0
51 people solved
Aug 14, 2025
Hard
Software EngineerDesign a multithreaded CPU 1D convolution
Question Design and implement a multithreaded CPU version of the valid 1‑D convolution. Valid convolution produces an output of length M = N − K + 1, ...
System Design
10
0
98 people solved
Aug 14, 2025
Medium
Data ScientistConstruct a Churn-Prediction Pipeline Using Scikit-Learn
Construct a Churn-Prediction Pipeline in scikit-learn Scenario You are a data scientist on a subscription business. You need to build a model that pre...
Machine Learning
38
0
136 people solved
Jul 12, 2025
Medium
Data ScientistCompare Logistic Regression and Random Forest in Limited Data Scenarios
Compare Logistic Regression and Random Forest in Limited Data Scenarios You are designing a binary classifier with limited labeled data. The signal ma...
Machine Learning
98
0
265 people solved
Jul 12, 2025
Medium
Data ScientistIdentify Challenges and Solutions for Bike-Delivery Program
Identify Challenges and Solutions for a Bike-Delivery Program A food-delivery platform is considering a bike-based delivery option for couriers in sel...
Behavioral & Leadership
18
0
111 people solved
Jul 12, 2025
Hard
Data ScientistHow to Analyze and Model Behavioral Data Effectively?
Analyze and Model Behavioral Data Effectively You receive a raw event-level behavioral dataset for a product funnel. The interviewer asks you to clean...
Machine Learning
105
0
300 people solved
Jul 12, 2025